Term
| advantages of sclairpipe are ? |
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Definition
- flexibility
- corrosion resistant
- light weight
-floats
-integral, waterproof joints/ but to but fusion of pipe without need of mechanical connection |
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Term
| what you need to consider when planning a pipeline job are ? |
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Definition
- joining sight
- assembly
- installation of ballast weights
-launching
- sinking |
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Term
| factors for the amount of weight used in the ballast weights sinking the pipeline would be? |
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Definition
- the operating conditions
- the action of currents and tides ( currents and tides can push and lift the pipeline)
- the stability of the bottom material ( to heavy will sink into mud) |
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Term
| what is done in the post-installation survey ? |
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Definition
-pipeline is located within the allowable right of way
- pipeline is fallowing the contour of the bottom and is not bridging. all wights are on bottom
- all fastening lines or apparatuses have been removes from the installation process
- if there is a trench, it is located in middle with no rocks or hazardous debris
- checking the grading may be required for constant depth of trench
- back filling opp has not damaged pipe and proper depth of coverage is obtained
- |
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Term
| types of pipe connections are ? |
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Definition
| welds, flanges (normal holes), fusion, threaded connections, slotted flanges (washers needed) |
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Term
| ways of sinking a pipeline\ |
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Definition
on shore instillation- weights installed on land
-on water installation- weights installed on water. use of crain and boat to attach weight
-in water- by diver
sinking is done by valves allowing air to escape and water to enter |
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Term
| protective wrapping that can be used are? |
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Definition
| neoprene 1/4, several wraps if 1/8 rubber, suitable rubber carpet under padding |
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